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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="202107-15">
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<title>blktrace: Buffer overflow</title>
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<synopsis>A buffer overflow in blktrace might allow arbitrary code execution.</synopsis>
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<product type="ebuild">blktrace</product>
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<announced>2021-07-08</announced>
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<revised count="1">2021-07-08</revised>
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<bug>655146</bug>
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<access>local, remote</access>
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<affected>
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<package name="sys-block/blktrace" auto="yes" arch="*">
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<unaffected range="ge">1.2.0_p20210419122502</unaffected>
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<vulnerable range="lt">1.2.0_p20210419122502</vulnerable>
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</package>
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</affected>
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<background>
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<p>blktrace shows detailed information about what is happening on a block
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device IO queue.
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</p>
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</background>
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<description>
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<p>A crafted file could cause a buffer overflow in the ‘dev_map_read’
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function because the device and devno arrays are too small.
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could entice a user to open a specially crafted file
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using blktrace, possibly resulting in execution of arbitrary code with
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the privileges of the process or a Denial of Service condition.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All blktrace users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose
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">=sys-block/blktrace-1.2.0_p20210419122502"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2018-10689">CVE-2018-10689</uri>
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</references>
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<metadata tag="requester" timestamp="2021-07-06T00:11:19Z">ajak</metadata>
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<metadata tag="submitter" timestamp="2021-07-08T03:29:36Z">ajak</metadata>
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</glsa>
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